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CVE-2015-0228

MEDIUM severity · CVSS 5 · Improper input validation
5CVSS MEDIUM

Summary

The lua_websocket_read function in lua_request.c in the mod_lua module in the Apache HTTP Server through 2.4.12 allows remote attackers to cause a denial of service (child-process crash) by sending a crafted WebSocket Ping frame after a Lua script has called the wsupgrade function.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges required
User interaction
Confidentiality impactNone
Integrity impactNone
Availability impact
Exploit probability (EPSS)15%

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products we track (2)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Last checked: Wed, 10 Jun 2026 22:18:30 UTC